七年级上册英语完形填空专项训练6（含答案解析）

In most cities, trees are all around us. They make our cities ____41____. People plant them in parks and 42 streets.

But trees are more than that. They are living things. They can get hurt (受伤) or sick just like people. _____43____ they need someone to care for (照顾) them. Arborists (树木栽培家), are _____44_____ for trees. They can care for trees after they get hit by lightning (闪电) or fall down during strong winds. They ______45____ the sick branches (树枝) from the trees to keep them from dying (死亡). They keep the city's trees healthy and strong.

Arborists can't ask trees about their ______46_____. They must know a lot about how to care for trees. Most arborists always study many ______47____ tree problems.

Arborists often work in high places. Their ______48____ can be dangerous (危险的), but it's very important.Cities need healthy trees. They ______49____ the air cool and clean. If a city has no trees, it may be a hot, dirty Cities need healthy trees. They ________ the air cool and clean. If a city has no trees, it may be a hot, dirty place. Arborists _______ our city a nicer place.

41. A. large B. small C. heavy D. beautiful

42. A. for B. along C. into D. under

43. A. For B. So C. And D. But

44. A. doctors B. friends C. guides D. teachers

45. A. kill B. save C. cut D. stop

46. A. stories B. problems C. dangers D. ideas

47. A. different B. good C. same D. bad

48. A. time B. number C. work D. answer

49. A. keep B. sell C. eat D. play

50. A.cook B.buy C.go D.make

答案及解析：

41. D. beautiful

解析：这句话的意思是树木让我们的城市变得美丽。large(大的)、small(小的)、heavy(重的)都不符合句意，只有beautiful(美丽的)符合上下文。

42. B. along

解析：这里指的是人们在公园和街道两旁种植树木。for(为了)、into(进入)、under(在下面)都不合适，along(沿着)最符合句意。

43. B. So

解析：这句话表示因此树木需要有人来照顾。For(因为)、And(和)、But(但是)都不符合逻辑关系，只有So(所以)符合。

44. A. doctors

解析：树艺师就像是树木的医生。friends(朋友)、guides(向导)、teachers(老师)都不如doctors(医生)准确描述树木栽培家的角色。

45. C. cut

解析：树木栽培家会剪掉病枝以防止树木死亡。kill(杀死)、save(保存)、stop(停止)都不符合句意，只有cut(剪掉)合适。

46. B. problems

解析：树木栽培家不能询问树木的问题。stories(故事)、dangers(危险)、ideas(想法)都不符合，只有problems(问题)合适。

47. A. different

解析：树艺师需要研究许多不同的树木问题。good(好的)、same(相同的)、bad(坏的)都不合适，只有different(不同的)符合。

48. C. work

解析：树艺师在高处工作可能会很危险。time(时间)、number(数字)、answer(答案)都不符合，只有work(工作)合适。

49. A. keep

解析：树木让空气保持凉爽和清洁。sell(卖)、eat(吃)、play(玩)都不符合，只有keep(保持)合适。

50. D. make

解析：树艺师让我们的城市变得更加美好。cook(烹饪)、buy(买)、go(去)都不合适，只有make(使变得)符合句意。